Ashiok's Skulker (WAR)

Creature — Nightmare

{3}{U}: This creature can't be blocked this turn.

Niche evasion creature for blue tempo decks, but the five-mana cost and reliance on an activated ability make it outclassed by more efficient threats with built-in evasion or card advantage. Better options exist in every format where it's legal.

War of the Spark — Common